Yellow filter layers for multi-layer photographic color elements

Claim 1

IN A METHOD FOR PREPARING A MULTI-LAYER PHOTOGRAPHIC ELEMENT COMPRISING (A) A SUPORT, (B) A REDSENSITIVE SILVER HALIDE EMULSION LAYER, (C) A GREEN-SENSITIVE SILVER HALIDE EMULSION LAYER, (D) A BLUE-SENSITIVE SILVER HALIDE EMULSION LAYER HAVING SUBSTANTIALLY NO SENSITIVITY IN THE GREEN AND RED REGIONS OF THE SPECTRUM AND (E) A BLUE-LIGHT ABSORBING COLLOID LAYER, SAID BLUE-SENSITIVE SILVER HALIDE EMULSION LAYER (D) BEING OUTERMOST WITH RESPECT TO SAID SILVER HALIDE EMULSION LAYERS (B) AND (C), AND SAID BLUE-LIGHT ABSORBING LAYER (E) BEING BENEATH SAID BLUE-SENSITIVE SILVER HALIDE EMULSION LAYER (D) BUT OUTERMOST WITH RESPECT TO SAID SILVER HALIDE EMULSION LAYERS (B) AND (C), THE STEPS COMPRISING (1) INCORPORATING A BLUE-LIGHT ABSORBING DYE (F) AS A CONSTITUENT OF ONE OF SAID SILVER HALID EMULSION LAYERS CONTIGUOUS TO SAID COLLOID LAYER (E) AND (2) DIFFUSING SUBSTANTIALLY ALL OF SAID BLUE-LIGHT ABSORBING DYE (F) FROM SAID CONTIGUOUS SILVER HALIDE EMULSION LAYER INTO SAID COLLOID LAYER (E) WHILE SAID CONTIGUOUS SILVER HALIDE EMULASION LAYERS (B), MOIST WITH WATER, SAID SILVER HALIDE EMULSION LAYERS (B) (C) AND (D) BEING SUBSTANTIALLY FREE OF MORDANTS, SAID BLUE-LIGHT ABSORBING DYE (F) BEING WATER-SOLUBLE AND CONTAINING AT LEAST ONE RADICAL SELECTED FROM THE CLASS CONSISTING OF CARBOXYL AND SULFO, SAID BLUE-LIGHT ABSORBING DYE (F) HAVING ITS MAXIMUM ABSORPTION BETWEEN ABOUT 400 AND 500 MU WITH SUBSTANTIALLY NO ABSORPTION BEYOND ABOUT 500 MU AND BEING ADAPTED TO BE RELEASED FROM SAID ELEMENT UPON TREATMENT WITH THE ALKALINE SOLUTIONS NORMALLY EMPOLYED IN COLOR PHOTOGRAPHY, AND SAID COLLOID LAYER (E) CONTAINING A MORDANT COMPRISING INTERPOLYMER UNITS REPRESENTED BY THE FOLLOWING GENERAL FORMULA: